Protective film with adhesive layer and with separator

Abstract

Provided is an adhesive layer-equipped protective film including a separator which is formed of a biaxially oriented film and can be easily divided. A protective film includes an adhesive layer-equipped film and a separator pasted to the film. The separator is formed of a biaxially oriented film and has a guide groove serving as a guide for separating the separator.

The invention claimed is: 
     
       1. A protective film comprising:
 an adhesive layer-equipped film; and 
 a separator pasted to the film, 
 wherein the separator is formed of a biaxially oriented film and has first and second guide grooves that do not reach the adhesive layer, 
 wherein the separator has first and second division start portions serving as a guide for separating the separator along the first guide groove, said first and second division start portions lying along a first plane which lies along an edge of the separator, said first plane being perpendicular to a direction of extent of the first guide groove, and wherein the separator further has third and fourth division start portions serving as a guide for separating the separator along the second guide groove, said third and fourth division start portions lying along a second plane which lies along the edge of the separator, said second plane being perpendicular to a direction of extent of the second guide groove, 
 wherein said first and second division start portions extend from the edge of the separator toward the first guide groove, and 
 wherein said third and fourth division start portions extend from the edge of the separator toward the second guide groove, 
 wherein said first and second division start portions are formed in first and second positions which sandwich the first guide groove along the first plane, and 
 wherein the third and fourth division start portions are formed in third and fourth positions which sandwich the second guide groove along the second plane, 
 
       and
 the first guide groove comprises a first end and a second end, wherein the first and second division start portions are provided at the first end of the first guide groove, and 
 the second guide groove comprises a third end and a fourth end, wherein the third and fourth division start portions are provided at the third end of the second guide groove, and 
 the first and third ends are provided side-by-side. 
 
     
     
       2. The film of  claim 1 , wherein
 at least one of the first and second division start portions is a slit or a groove deeper than the first guide groove, wherein the at least one of the first and second division start portions and the first guide groove are separate elements. 
 
     
     
       3. The film of  claim 1 , wherein
 the first and second division start portions are not in contact with the first guide groove. 
 
     
     
       4. The film of  claim 1 , wherein
 the first guide groove and the second guide groove are formed substantially in parallel. 
 
     
     
       5. The film of  claim 1 , wherein
 the first guide groove and the second guide groove are formed in substantially parallel, and 
 wherein the first division start portion and the second division start portion are configured to be parallel to each other.